Question

Cost of Running Water Heaters
(To estimate your water heating bill, locate the price you pay for gas, electricity or propane on the chart below.)

What would it cost to run a natural gas water heater for one year in an area where natural gas costs $0.90 per therm?

Answer 1

Since water heaters are thermostatically controlled shutting off the gas use when the desired temperature is reached and this varies depending on amount of hot water is used, I am thinking you need to make some assumptions or you are leaving out parts of the problem.

Answer 2

YEA it was a image with it that couldnt get copy

Answer 3

I see, do you know the gas consumption for the hot water heater (for 1 year)?

Answer 4

NATURAL GAS

PRICE / YEARLY
PER / COST
THERM /
/
$0.40 / $124

$0.50 / $147

$0.60 / $170

Answer 5

price per therm on the left and yearly cost on the right

Answer 6

NATURAL GAS

PRICE / YEARLY
PER / COST
THERM /
/
$0.40 / $124

$0.50 / $147

$0.60 / $170

What would it cost to run a natural gas water heater for one year in an area where natural gas costs $0.90 per therm?__________

Answer 7

It appears that as the price per therm increases by 10 the annual cost increases by $23.00 then the given .90 per therm is .30s above the .60 (a jump of 3 increments of .10) you would get 3*($23.00) jump in yearly cost
yearly cost=$170+$69.00=$239.00

Answer 8

Does that seem reasonable?

Answer 9

yea THANK YOU

Answer 10

You're welcome, I hope it is correct, I did make an assumption.